Mjbiz is the first time I’ve seen a hybrid wiped film system with a steel condenser. Should make the condenser coil a boatload more efficient, I think?
Has anyone here played with one of these? I’m considering springing for a small one for our r&d space.
Like this one: https://www.lab1st.com/hybrid-molecular-distillation
Huh that’s interesting. On the other hand any glass-steel connections always make me nervous and this adds a bunch more.
That’s a good point. I didn’t see any glaringly stupid things on the one on the floor at MJBiz, but I only spent maybe 10-15 minutes poking at it.
Quick pull for thermal conductivity of SS304 and glass:
thermal conductivity stainless steel 304 = 14.4 W/(m K)
thermal conductivity glass = 1.05 W/(m K)
Per unit thickness, stainless steel will conduct more heat than glass.
Play w/ Fourier’s Law to compare different material thicknesses.
–Have fun
Of course, your net heat transfer is going to depend on way more factors than that - the thermal properties of your chilling fluid, what temperature it’s at, what temp you’re running the hot side at, vac levels, etc.
But yeah, a ~14x increase in heat transfer sounds about right for a pure theoretical number. I think it would probably end up more like 3-10x in the real world, because so much depends on the implementation.
we have one at our lab in vegas from the floor of mj biz con. my partner worked out something w the lab first ppl. sucks it didnt come w any heaters or chillers tho. havent used.
I’d love to hear how it works when you get it fired up. Or if I get one before then I’ll remember to post here with a review.